Frank rhind



P. RHIND.

(No Model.)

LAMP.

Patented Aug. 27, 18 89.

N. PEYERS. Pholomhu m her. Washington, D c.

UNIT D STATES PATENT OFFICE.

FRANK RI-IIND, OF BROOKLYN, ASSIGNOR OF ONE-HALF TO CHARLES S. UPTON, OF NEWV YORK, N. Y.

LAMP.

SPECIFICATION forming part of Letters Patent No. 409,706, dated August 27, 1889.

Application filed April 8, 1886- Serial No. 198,200 (No model.)

To all whom it may concern.-

Be it known that I, FRANK RHIND, of Brooklyn, in the county of Kings and State of New York, have invented an Improvement in Lamps, of which the following is a specification. I

This invention is an improvement in Argand or central-draft lamps; and it consists of the construction, combination, and arrangement of parts hereinafter described and claimed.

In the accompanying drawings, forming part of this specification, Figure 1 represents, in central vertical section, a central-draft lamp provided with my improvements; and Fig. 2, a transverse section on line 00 0c of Fig. 1.

1n the drawings, 2 represents the reservoir, and 3 a tube passing through and extending above the same. This tube is provided at the top with a deflector l, also, of tubular form, and around this .is the chin'mey-rest 5, provided with the chimney-springs 6, by which the chimney 7 is retained in place. The wick-tube 8 and central air-tube 9 are united at the bottom and form between them an annular oil-chamber, in which the wick 10 is placed. The wick is provided with a perforated cylinder-11, of sheet metal, that slides freely within the tube 8.

At the lower part of the annular oil-chainber is a supply-pipe 13, forming a communication between the reservoir and wick chamber. The air-chamber 15 entirely incloses the wick-tube, except where said tube communicates with the reservoir by means of tube 13.

The base of the lamp is provided with a finely-perforated sheet-metal cylinder 17, having a closed bottom 18.

The wick-raiser consists of a toothed pinion 26, the teeth of which mesh with the perforations in the cylinder 11. Pinion 2G is acted upon by another similar pinion 27 on the shaft 28, which is provided with a button 29.

A case 30 incloses the pinions 2G and 27 and supports the same, and serves to sustain the upper part of the wick-tube and hold it in proper relation to the reservoir. All these parts are of ordinary construction and form 110 part of my invention.

Within the central-draft tube I place a perforated cone 22, the base of which fits the shank which fits within the top of the cone,

which is cut away.

The operation of this device is as follows: The air for the supply of combustion passes in through the perforated cylinder 17, up around the wick-tube to the outside of the flame, and up through the central tube through the perforations in cone 22 and to the inner surface of the flame. The perforated conc serves 'to break up and distribute the aircurrents and to keep the supply steady and constant. The deflector 20 serves to spread the flame and thereby aitord a better opportunity for the oxygen of the air to mingle with the burning gases, and the result is a more perfect combustion and an enlarged, clear, white, and steady flame and a higher degree of illumination than is usual in this class of lamps.

I am aware that Argand lamps having a perforated cone, the lower end of which fits the central tube, the upper end being provided with a hollow button, the side walls of which are perforated, as shown in United States Patent No. 333,338, granted to me Be cember 29, 1885, are not new and make no claim to such construction herein.

It is evident that my improvement can be applied to any form of Argand lamp, regardless of the manner in which air is supplied to the central tube.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent of the United Stat-es, is

The combination, with the central tube of an Argand or central-draft lamp, of a perforated cone, the base of which fits the inner side of said tube, said cone being provided with a solid deflector-button at the top thereof, substantially as shown and described.

Signed by me this 5th day of April, A. D.

FRANK RHIND. IVitnesses:

GEO. T. PINOKNEY, \VILLIAM G. Mom. 

